DPD 3-phase Voltage and Frequency Monitoring with NFC Benefits Flexibility and Versatility. 2 part numbers cover all requirements in terms of mains type, voltage and frequency values. 2 SPDT outputs. It is possible to provide 2 different signals for different purposes. Plug & Play. DPD is available with 2 different factory settings. Which are the most commonly used. Customized devices availability. DPD can be ordered with customized settings also for very small quantities. NFC Communication. Through the NFC communication, via smartphone, tablet or PC, the DPD can be configured or provide real time operation data such as: alarms status, voltage & frequency readings. High Compactness. The DPD features a large amount of capabilities in just 22.5 mm. Description DPD is a threephase multifunction configurable monitoring relay suitable for both Delta and Star mains. It protects loads from wrong phase sequence, neutral and phase loss, additionally voltage, frequency and asymmetry thresholds can be set and provide output signals. The DPD is delivered with factory default alarm values, if they are not completely suitable they can be modified according to own requirements. DPD has two separate relay outputs. 3 front LEDs provide visual indication of outputs states and alarm discrimination. Through the DPD APP the user can reprogram the unit at any time or check the device operation status. Applications DPD is suitable for all applications where it is necessary to monitor phase presence, correct phase sequence and the voltage, frequency and quality of threephase load mains: lifts, escalators, HVAC, material handling, pumps and compressors. Main functions 3Ph or 3Ph+N monitoring From 177V to 552V LL or 102V to 318V LN Operating frequency from 45 to 440Hz Phase sequence and phase or neutral loss alarm 16/11/2017 DPD DS ENG Carlo Gavazzi Controls S.p.A. 1DPD Configurable voltage, frequency and asymmetry alarms Up to 10 alarms combinable with and / or operators NFC Interface Structure A LED2 LED1 LED3 B C Element Component Function A Power supply terminals L1, L2, L3 and N supply and measuring terminals B Output2 terminals Output relay 2 contacts terminals: COM, NO and NC C Output1 terminals Output relay 1 contacts terminals: COM, NO and NC LED1 Output led This LED is lit when Output 1 is energized LED2 Output led This LED is lit when Output 2 is energized LED3 is bicolor and can be blinking or fixed: Green On fixed: ok Green Flashing: alarm triggered but configured delay is elapsing 1 red flash: phase or neutral Loss or phase sequence LED3 Alarm led 2 red flashes: under or over voltage 3 red flashes: under or over frequency 4 red flashes: asymmetry 5 Flashes: out of range parameter 16/11/2017 DPD DS ENG Carlo Gavazzi Controls S.p.A. 2